[INFO] fetching crate observable-property-tokio 0.4.0...
[INFO] checking observable-property-tokio-0.4.0 against try#93086cfebfccb79083c59d0d3b2052944bba643c for pr-146440-1
[INFO] extracting crate observable-property-tokio 0.4.0 into /workspace/builds/worker-7-tc2/source
[INFO] started tweaking crates.io crate observable-property-tokio 0.4.0
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate observable-property-tokio 0.4.0
[INFO] tweaked toml for crates.io crate observable-property-tokio 0.4.0 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate observable-property-tokio 0.4.0 on toolchain 93086cfebfccb79083c59d0d3b2052944bba643c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+93086cfebfccb79083c59d0d3b2052944bba643c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate observable-property-tokio 0.4.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+93086cfebfccb79083c59d0d3b2052944bba643c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+93086cfebfccb79083c59d0d3b2052944bba643c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5c213212fc7e8464da19abc17b8098b30fd3b8933bc317e67cec55176eb98288
[INFO] running `Command { std: "docker" "start" "-a" "5c213212fc7e8464da19abc17b8098b30fd3b8933bc317e67cec55176eb98288", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5c213212fc7e8464da19abc17b8098b30fd3b8933bc317e67cec55176eb98288", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5c213212fc7e8464da19abc17b8098b30fd3b8933bc317e67cec55176eb98288", kill_on_drop: false }`
[INFO] [stdout] 5c213212fc7e8464da19abc17b8098b30fd3b8933bc317e67cec55176eb98288
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+93086cfebfccb79083c59d0d3b2052944bba643c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fe7dbceb30cfb824f4ebe9a3e08129bc0076f5b6474b3e5de2b833fe61061d85
[INFO] running `Command { std: "docker" "start" "-a" "fe7dbceb30cfb824f4ebe9a3e08129bc0076f5b6474b3e5de2b833fe61061d85", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.101
[INFO] [stderr]    Compiling libc v0.2.175
[INFO] [stderr]    Compiling parking_lot_core v0.9.11
[INFO] [stderr]     Checking cfg-if v1.0.3
[INFO] [stderr]    Compiling lock_api v0.4.13
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]    Compiling syn v2.0.106
[INFO] [stderr]     Checking parking_lot v0.12.4
[INFO] [stderr]    Compiling tokio-macros v2.5.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.69
[INFO] [stderr]     Checking tokio v1.47.1
[INFO] [stderr]     Checking thiserror v1.0.69
[INFO] [stderr]     Checking observable-property-tokio v0.4.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: struct `PropertyHandle` is never constructed
[INFO] [stdout]    --> src/lib.rs:524:12
[INFO] [stdout]     |
[INFO] [stdout] 524 | pub struct PropertyHandle<T: Clone + Send + Sync + 'static> {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `pub` struct has private fields, no public constructor, and is not otherwise reachable through the external API, so consider providing a public constructor or removing it
[INFO] [stdout]     = note: `#[deny(unused_unconstructable_pub_structs)]` (part of `#[deny(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `observable-property-tokio` (lib) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: struct `PropertyHandle` is never constructed
[INFO] [stdout]    --> src/lib.rs:524:12
[INFO] [stdout]     |
[INFO] [stdout] 524 | pub struct PropertyHandle<T: Clone + Send + Sync + 'static> {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `pub` struct has private fields, no public constructor, and is not otherwise reachable through the external API, so consider providing a public constructor or removing it
[INFO] [stdout]     = note: `#[deny(unused_unconstructable_pub_structs)]` (part of `#[deny(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `observable-property-tokio` (lib test) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "fe7dbceb30cfb824f4ebe9a3e08129bc0076f5b6474b3e5de2b833fe61061d85", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fe7dbceb30cfb824f4ebe9a3e08129bc0076f5b6474b3e5de2b833fe61061d85", kill_on_drop: false }`
[INFO] [stdout] fe7dbceb30cfb824f4ebe9a3e08129bc0076f5b6474b3e5de2b833fe61061d85
